Source:http://linkedlifedata.com/resource/umls/id/C0039029
MSH: The living together of organisms of different species.,CSP: state of close, permanent, or obligatory contact between 2 species, usually of a mutually beneficial nature.,GO: An interaction between two organisms living together in more or less intimate association in a relationship in which one benefits and the other is unaffected. [GOC:pamgo_curators]